Analysis

  • max time kernel
    74s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:27

General

  • Target

    422064c5f74e19c59c15854672deca9e61dbfab9194c0deca8ee4550608d6fe4.exe

  • Size

    601KB

  • MD5

    bbe6de0fce947ab47a66fcfe8ab248eb

  • SHA1

    f7450b9fa43720c465805b7346e63d514288ea01

  • SHA256

    422064c5f74e19c59c15854672deca9e61dbfab9194c0deca8ee4550608d6fe4

  • SHA512

    e77aef0cf691d11f06b2eb43e02a84d2e78bc9377833266bcdf6ead18707c06d670c86e7ccb26f707fd1f830a5bb4633cf2fe572a09c5aaa5f6b9e9ed6d5f1e9

  • SSDEEP

    12288:XIny5DYTDppsBt1K8DEc0GPkquchwABI8slN4W+j8T:/UTDEBzDEN18WWWJ

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\422064c5f74e19c59c15854672deca9e61dbfab9194c0deca8ee4550608d6fe4.exe
    "C:\Users\Admin\AppData\Local\Temp\422064c5f74e19c59c15854672deca9e61dbfab9194c0deca8ee4550608d6fe4.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2488
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4800
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2064
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4132
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2552
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3156
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4380
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4796
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4628
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3552
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3868
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4420

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDA4A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6be3950108417a81264fa2de9afdc4b5

            SHA1

            a2d3b83b9271e7be8490988974da48f579bb5383

            SHA256

            e244240008dc28a6a2e9db58da27b4001c7982973596c6a754ffedad818c2b10

            SHA512

            afe752c59b0cbbc4bd7c44b2831d57035537ff705f180f8f3cc2f72d12d170205d84e611a5a07888ba6041c4acddc9971102da8b4bdf52b406cd619c0665496a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6be3950108417a81264fa2de9afdc4b5

            SHA1

            a2d3b83b9271e7be8490988974da48f579bb5383

            SHA256

            e244240008dc28a6a2e9db58da27b4001c7982973596c6a754ffedad818c2b10

            SHA512

            afe752c59b0cbbc4bd7c44b2831d57035537ff705f180f8f3cc2f72d12d170205d84e611a5a07888ba6041c4acddc9971102da8b4bdf52b406cd619c0665496a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6be3950108417a81264fa2de9afdc4b5

            SHA1

            a2d3b83b9271e7be8490988974da48f579bb5383

            SHA256

            e244240008dc28a6a2e9db58da27b4001c7982973596c6a754ffedad818c2b10

            SHA512

            afe752c59b0cbbc4bd7c44b2831d57035537ff705f180f8f3cc2f72d12d170205d84e611a5a07888ba6041c4acddc9971102da8b4bdf52b406cd619c0665496a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6be3950108417a81264fa2de9afdc4b5

            SHA1

            a2d3b83b9271e7be8490988974da48f579bb5383

            SHA256

            e244240008dc28a6a2e9db58da27b4001c7982973596c6a754ffedad818c2b10

            SHA512

            afe752c59b0cbbc4bd7c44b2831d57035537ff705f180f8f3cc2f72d12d170205d84e611a5a07888ba6041c4acddc9971102da8b4bdf52b406cd619c0665496a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d3ab7fab60147b2339ac9fb60a988552

            SHA1

            566b7554e39dc85d6f2cc2574c5b5bb6b66625c6

            SHA256

            f2ce2d2e0479a299e65476f3edfc85d902e740dd0184cc1295e687950384da51

            SHA512

            3201bee6a2d804392a71991746983bc0bbb9bcc7d7d7f93478615a2a7720fa648f67cb85b04db1720ffa86592611726b60c7e02416b06f60df40b9092c9657b7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d3ab7fab60147b2339ac9fb60a988552

            SHA1

            566b7554e39dc85d6f2cc2574c5b5bb6b66625c6

            SHA256

            f2ce2d2e0479a299e65476f3edfc85d902e740dd0184cc1295e687950384da51

            SHA512

            3201bee6a2d804392a71991746983bc0bbb9bcc7d7d7f93478615a2a7720fa648f67cb85b04db1720ffa86592611726b60c7e02416b06f60df40b9092c9657b7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d3ab7fab60147b2339ac9fb60a988552

            SHA1

            566b7554e39dc85d6f2cc2574c5b5bb6b66625c6

            SHA256

            f2ce2d2e0479a299e65476f3edfc85d902e740dd0184cc1295e687950384da51

            SHA512

            3201bee6a2d804392a71991746983bc0bbb9bcc7d7d7f93478615a2a7720fa648f67cb85b04db1720ffa86592611726b60c7e02416b06f60df40b9092c9657b7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            07f406597e443c6c77181ea92f5677d1

            SHA1

            147849d002be2392f1f32c2d5c24abcaf149fa29

            SHA256

            6aed6931a0f4b851c1b92c3f236bed999912238696fbe43efbb23be3ba4cdf08

            SHA512

            c809050ee5a062a32c96df1bfed43d016342ff37f40d4b1ec39ad0e084393cd01b282d97aadede0f2037fcab435fc4caa029603b666a399a7b8ad7d17ac2b7fd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            07f406597e443c6c77181ea92f5677d1

            SHA1

            147849d002be2392f1f32c2d5c24abcaf149fa29

            SHA256

            6aed6931a0f4b851c1b92c3f236bed999912238696fbe43efbb23be3ba4cdf08

            SHA512

            c809050ee5a062a32c96df1bfed43d016342ff37f40d4b1ec39ad0e084393cd01b282d97aadede0f2037fcab435fc4caa029603b666a399a7b8ad7d17ac2b7fd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d8733ea7efbd21d0059fcd2b360ad39c

            SHA1

            e7a53e086b356fe6dc6ff8afa9647d96d0d0f98d

            SHA256

            a8c6bdc05d8faa70abd0871cbf1ed7c56a3102dff22d1ffdf8d85ba35da4cf01

            SHA512

            d586a89c7c8d0ed412b6a56c30ef756359afe258eb7dec334435315b9bf7e0a73d5402553956cae9a3fdf680831184cfdb1a1c7e85ae379e73090ab173264221

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d8733ea7efbd21d0059fcd2b360ad39c

            SHA1

            e7a53e086b356fe6dc6ff8afa9647d96d0d0f98d

            SHA256

            a8c6bdc05d8faa70abd0871cbf1ed7c56a3102dff22d1ffdf8d85ba35da4cf01

            SHA512

            d586a89c7c8d0ed412b6a56c30ef756359afe258eb7dec334435315b9bf7e0a73d5402553956cae9a3fdf680831184cfdb1a1c7e85ae379e73090ab173264221

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d8733ea7efbd21d0059fcd2b360ad39c

            SHA1

            e7a53e086b356fe6dc6ff8afa9647d96d0d0f98d

            SHA256

            a8c6bdc05d8faa70abd0871cbf1ed7c56a3102dff22d1ffdf8d85ba35da4cf01

            SHA512

            d586a89c7c8d0ed412b6a56c30ef756359afe258eb7dec334435315b9bf7e0a73d5402553956cae9a3fdf680831184cfdb1a1c7e85ae379e73090ab173264221

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ebc21cdee1f443f746dc222aa28f919e

            SHA1

            dc77bfd509d277effaed29d29c12f77a6e5ea9bf

            SHA256

            f2ebf8e430afdf8e60a5ee43b8c90b5b3b77f5b07c3dcf9dec7e7f65d8012387

            SHA512

            78aa45cc352af1a337cf50c8e3d0fcb7c363e27d3b40ddcb51bf900b0ffe440778ca12c494d16d433277546a87d69348fb857cba8f3bbaa8391cb074e83e92f7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ebc21cdee1f443f746dc222aa28f919e

            SHA1

            dc77bfd509d277effaed29d29c12f77a6e5ea9bf

            SHA256

            f2ebf8e430afdf8e60a5ee43b8c90b5b3b77f5b07c3dcf9dec7e7f65d8012387

            SHA512

            78aa45cc352af1a337cf50c8e3d0fcb7c363e27d3b40ddcb51bf900b0ffe440778ca12c494d16d433277546a87d69348fb857cba8f3bbaa8391cb074e83e92f7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ebc21cdee1f443f746dc222aa28f919e

            SHA1

            dc77bfd509d277effaed29d29c12f77a6e5ea9bf

            SHA256

            f2ebf8e430afdf8e60a5ee43b8c90b5b3b77f5b07c3dcf9dec7e7f65d8012387

            SHA512

            78aa45cc352af1a337cf50c8e3d0fcb7c363e27d3b40ddcb51bf900b0ffe440778ca12c494d16d433277546a87d69348fb857cba8f3bbaa8391cb074e83e92f7

          • memory/2064-141-0x0000000000000000-mapping.dmp

          • memory/2488-135-0x0000000000000000-mapping.dmp

          • memory/2548-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2548-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2552-147-0x0000000000000000-mapping.dmp

          • memory/2860-140-0x0000000000000000-mapping.dmp

          • memory/3156-153-0x0000000000000000-mapping.dmp

          • memory/3552-166-0x0000000000000000-mapping.dmp

          • memory/4132-142-0x0000000000000000-mapping.dmp

          • memory/4380-158-0x0000000000000000-mapping.dmp

          • memory/4628-165-0x0000000000000000-mapping.dmp

          • memory/4796-159-0x0000000000000000-mapping.dmp

          • memory/4800-136-0x0000000000000000-mapping.dmp